It’s now five years since the early warning signs of what would develop into the global financial crisis first started to show, and extraordinarily, there’s little evidence that bankers have mended their ways.

Last week a computer glitch at a high-frequency trader in New York caused wild swings at the NYSE. It's a warning to our regulators to clamp down on automated trading, writes Robert Gottliebsen of Business Spectator.

High-frequency share trading is big business. The question is whether it’s fair to the rest of us; whether parasites with their suckers fastened directly into the heart of the ASX should be allowed to do it.